Teoria de Perturbações Invariantes de Calibre em ... - CBPFIndex
Teoria de Perturbações Invariantes de Calibre em ... - CBPFIndex
Teoria de Perturbações Invariantes de Calibre em ... - CBPFIndex
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˜R µ ναρ= ˜Γ µ νρ,α− ˜Γ µ να,ρ+ ˜Γ ǫ ˜Γ µ νρ ǫα− ˜Γ ǫ ˜Γ µ να ǫρ= R (0)µ ναρ+ 1 h µ ν;ρα+ h µ ρ;να<br />
2<br />
;µ<br />
−h νρ α − h µ ν;αρ− h µ ;µ<br />
α;νρ+ h αν ρ<br />
)− 1 )<br />
2 hµσ ;α<br />
(h σν;ρ + h σρ;ν − h ρν;σ<br />
+ 1 2 hµσ ;ρ<br />
(h σν;α + h σα;ν − h αν;σ<br />
)− 1 (<br />
2 hµσ h σν;ρα + h σρ;να − h νρ;σα − h σν;αρ<br />
)<br />
−h σα;νρ + h αν;σρ + 1 [( )( )<br />
h ǫ ν;ρ+ h ǫ ;ǫ<br />
ρ;ν− h ρν h µ ǫ;α+ h µ ;µ<br />
α;ǫ− h αǫ<br />
4<br />
( )( )]<br />
− h ǫ ν;α+ h ǫ ;ǫ<br />
α;ν− h αν h µ ǫ;ρ+ h µ ;µ<br />
ρ;ǫ− h ρǫ<br />
˜R νρ = ˜R µ νµρ= R (0)<br />
νρ+ 1 ) ( (h µ ν;ρµ+ h µ ;µ<br />
ρ;νµ− h νρ µ − h ;νρ − h µσ ;µ h σν;ρ<br />
2<br />
)<br />
+h σρ;ν − h ρν;σ − 1 (<br />
2 hµσ<br />
+ 1 4 h ;ǫ<br />
(<br />
h ǫ ν;ρ+ h ǫ ρ;ν− h νρ<br />
;ǫ<br />
h σν;ρµ + h σρ;νµ − h νρ;σµ − h σµ;νρ<br />
)+ 1 4 hµσ ;ρh µσ;ν<br />
)<br />
− 1 ( )( )<br />
h ǫ ;ǫ<br />
ν;µ− h µν h µ ;µ<br />
ρ;ǫ− h ǫρ<br />
4<br />
(<br />
˜R= ˜R µν g˜g µν = R (0) + h µν ;µν− h ;µ µ− h σµ ;µh ν σ ;ν+ h σµ ;µh ;σ + 3 4 hσµ;ν h σµ;ν<br />
com<br />
−h µσ h σ<br />
ν ;νµ + h µσ h ;µσ + h µσ h µσ<br />
;ν ν − 1 4 h ;µh ;µ − 1 2 h νµ;ǫh νǫ;µ − h νρ R νρ<br />
−h νρ h µ ν;ρµ+ h ν αh αρ R νρ .<br />
Por fim, a ação será<br />
δ 2 S=− 1<br />
6l 2 ∫<br />
˜S=− 1<br />
6l 2 ∫<br />
d 4 x √ −˜g ˜R=S (0) +δ 1 S+δ 2 S<br />
S (0) =− 1<br />
6l 2 ∫<br />
δ 1 S= 1<br />
6l 2 ∫<br />
d 4 x √ −gR (0)<br />
d 4 x √ −gh µν G (0)<br />
µν<br />
(<br />
d 4 x<br />
√−g (0) −h σµ ν<br />
;µh σ ;ν + h σµ ;µh ;σ + 3 4 hσµ;ν h σµ;ν − h σµ ν<br />
h σ ;νµ<br />
+h µσ h µσ<br />
;ν ν − 1 4 h ;µh ;µ − 1 2 hνµ;ǫ h νǫ;µ − h ν ρ h νµ ;ρµ+ h α ν h αρ R (0)<br />
νρ+ 1 2 hhµν ;µν<br />
− 1 2 hh;µ µ− 1 2 hhµν R (0)<br />
µν+ 1 8 h2 R (0) − 1 4 hµν h µν R (0) + h µσ h ;µσ<br />
).<br />
Através <strong>de</strong> integrais por partes obt<strong>em</strong>os<br />
δ 2 S= 1 ∫<br />
6l 2 d 4 x<br />
− 1 2 hνǫ h αµ R (0)<br />
ναǫµ+ 1 2<br />
√<br />
−g (0) [ 1<br />
4 hµν;α h µν;α − 1 2 h µ ν ;νh µρ ;ρ+ 1 2 h ;µh µν ;ν− 1 4 h ;µh ;µ<br />
(hh αβ − h µ α h µβ )<br />
R (0)<br />
αβ + (<br />
114<br />
h µν h µν − 1 2 h2 ) R<br />
(0)<br />
4<br />
]<br />
.